Dynamic instability analysis of porous FGM conical shells subjected to parametric excitation in thermal environment within FSDT

2021 ◽  
Vol 158 ◽  
pp. 107202
Author(s):  
Tao Fu ◽  
Xing Wu ◽  
Zhengming Xiao ◽  
Zhaobo Chen
Keyword(s):  
Parametric Excitation ◽  
Dynamic Instability ◽  
Thermal Environment ◽  
Instability Analysis ◽  
Conical Shells

Dynamic instability analysis of circular conical shells

1999 ◽  
Vol 46 (1) ◽  
pp. 59-64 ◽  
Author(s):  
M. Ganapathi ◽  
B.P. Patel ◽  
C.T. Sambandam ◽  
M. Touratier
Keyword(s):  
Dynamic Instability ◽  
Instability Analysis ◽  
Conical Shells ◽  
Circular Conical Shells

Dynamic instability analysis of general shells reinforced with polymeric matrix and carbon fibers using a coupled IG-SFSM formulation

2021 ◽  
Vol 263 ◽  
pp. 113720
Author(s):  
Mohammad Amin Shahmohammadi ◽  
Mojtaba Azhari ◽  
Mohammad Mehdi Saadatpour ◽  
Hamzeh Salehipour ◽  
Ömer Civalek
Keyword(s):  
Carbon Fibers ◽  
Dynamic Instability ◽  
Polymeric Matrix ◽  
Instability Analysis

Dynamic Instability of Delaminated Composite Plates under Parametric Excitation

2006 ◽  
Vol 326-328 ◽  
pp. 1765-1768 ◽  
Author(s):  
Meng Kao Yeh ◽  
Kuei Chang Tung
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Parametric Excitation ◽  
Composite Plate ◽  
Dynamic Instability ◽  
Composite Plates ◽  
Modal Parameters ◽  
The Finite Element Method ◽  
Electromagnetic Device ◽  
Instability Regions

The dynamic instability behavior of delaminated composite plates under transverse excitations was investigated experimentally and analytically. An electromagnetic device, acting like a spring with alternating stiffness, was used to parametrically excite the delaminated composite plates transversely. An analytical method, combined with the finite element method, was used to determine the instability regions of the delaminated composite plates based on the modal parameters of the composite plate and the position, the stiffness of the electromagnetic device. The delamination size and position of composite plates were varied to assess their effects on the excitation frequencies of simple and combination resonances in instability regions. The experimental results were found to agree with the analytical ones.

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